/Engine/Source/Editor/BlueprintGraph/Classes/K2Node.h
Customize automatically created pins if desired.
virtual void CustomizePinData ( [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) * Pin, [FName](API\Runtime\Core\UObject\FName) SourcePropertyName, int32 ArrayIndex, [FProperty](API\Runtime\CoreUObject\UObject\FProperty) * Property ) const